A great way to start a fire. I’ve only tried this out in the garden so far, but it’s always good to familiarise yourself with new products before using it in a real scenario.
The tinder lights up straight away, burn time is dependant on how much fuel you use and the thickness you shave off the tinder stick.

A wee demo video…
( excuse the blunt knife and lighter, I now have the LMF Fireknife).